Sudoku Online
Challenge your brain with our free Sudoku puzzles. Choose your difficulty and start playing!
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Mistakes
Easy
Difficulty
How to Play Sudoku
1. The Grid
Sudoku is played on a 9x9 grid divided into nine 3x3 boxes.
2. The Goal
Fill every row, column, and 3x3 box with numbers 1-9 without repeating.
3. The Rules
Each number 1-9 can only appear once in each row, column, and box.
4. Strategy
Use logic and elimination to find the correct numbers for each cell.
Difficulty Levels
Easy: 38+ cells filled
Medium: 30-37 cells filled
Hard: 22-29 cells filled
Pro Tip:
Start with rows, columns, or boxes that have the most numbers already filled in. This makes it easier to identify which numbers are missing.
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